Quizziz Ecosystems L7 Global Cycles of Matter

Earth is, in general, a closed system because

• matter can leave Earth but cannot enter.

• no matter enters or leaves Earth.

• matter can enter Earth but cannot leave.

• matter enters and leaves Earth in cycles.

The law of conservation of matter is a scientific principle stating that

• the amount of matter in a closed system always stays the same.

• the amount of matter in a system, closed or open, always stays the same.

• the amount of matter in a closed system decreases as the amount of energy increases

• the amount of matter in an open system increases as the amount of energy decreases.

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Which of these is true of energy in Earth’s biosphere?

• Energy cannot enter or leave Earth’s biosphere.

• Energy can enter and leave Earth’s biosphere.

• Energy can leave but cannot enter Earth’s biosphere.

• Energy can enter but cannot leave Earth’s biosphere.

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Which of these is a situation in which matter would leave Earth’s biosphere?

• a meteor falls toward Earth

• a spacecraft enters space

• an airplane soars above clouds

• a shooting star lights up the night sky

Water moves through the ​​ ​ (a)   and​​ (b)   parts of Earth in a global cycle.

• living
• non living
• large
• small
• open
• closed

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The water cycle describes the process by which water molecules are

• deposited onto the organisms and environments on Earth from the atmosphere.

• taken from the organisms and environments on Earth and given to the atmosphere.

• transferred among the organisms and ecosystems on Earth and the atmosphere.

• created by the organisms and environments on Earth and transferred to the atmosphere.

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Which of these describes how water moves between a living thing and its environment?

• Sunlight warms liquid water.

• An increase in predators creates a shortage of water.

• Water molecules evaporate from the soil and combine to become clouds.

• A producer takes up water molecules from soil and uses them to make other molecules.

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Which of these is NOT part of the water cycle?

• water vapor rises and cools

• water molecules produce clouds

• humans collect water when it rains

• water molecules fall back to Earth’s surface

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Which parts of an ecosystem do carbon atoms move through?

• atmosphere only

• living things only

• terrestrial and aquatic

• living and non-living

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How are carbon atoms released into the non-living parts of an ecosystem?

• through plants

• through sunlight

• through respiration

• through the water cycle

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